摘要
研究了硬石膏掺量(0%,1%,2%,3%)对硅酸盐水泥-铝酸盐水泥复合体系抗压强度和干缩性能的影响。结果表明:随着硬石膏掺量的增加,在水化早期,硅酸盐水泥-铝酸盐水泥二元体系的抗压、抗折强度变化不大,水化后期,硬化砂浆的抗压抗折强度在2%硬石膏掺量时达到最大;随着硬石膏掺量的增加,硅酸盐水泥-铝酸盐水泥复合体系的收缩率逐渐降低,且与预养护龄期无关。
This paper studies the influence of different dosages of anhydrite （0%, 1%, 2%, 3%） on performance of Portland cement-aluminate cement system. Experimental results show that with the increase of dosage of anhydrite, the compressive and the breaking strengths change little at early ages and reach the maximum value as the addition of anhydrite is 2% at late age, and the shrinkage gradually decreases, which has nothing to do with the curing ages.
出处
《砖瓦》
2014年第10期14-16,共3页
Brick-tile
基金
国家十二五科技支撑计划(2011BAJ04B02)
中央高校基本科研业务专项资金资助项目(2013-YB-25)
关键词
硅酸盐水泥
铝酸盐水泥
硬石膏
抗压强度
抗折强度
portland cement
aluminate cement
anhydrite
compressive strength
breaking strength
